//
//  NSDate+OSExtension.h
//  百思不得姐
//
//  Created by PushMeBaby on 16/3/2.
//  Copyright © 2016年 CoderC. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSDate (OSExtension)

-(NSDateComponents *)deltaFrom:(NSDate*)from;

-(BOOL)isThisYear;

-(BOOL)isToday;

-(BOOL)isYesterday;


@end
